Migrate git repository to bitbucket Edited

I have my code (including a lot of branches) in my Git repository that I want to move to bitbucket. The size of the repo is more than 6 GB, so I want to use Git LFS for my large binary files. How do I migrate my repo to bitbucket?

If I just take a mirrored copy, I cannot add large files to Git LFS and when I push the entire code to bitbucket, it becomes read-only because it has reached the soft and hard quota limit.

If I clone the entire repository, how do I add files to git lfs and then push them to a new bitbucket repository including the branches and tags?